WO2017186174A1 - Harq-ack information transmission method and apparatus - Google Patents

Harq-ack information transmission method and apparatus Download PDF

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Publication number
WO2017186174A1
WO2017186174A1 PCT/CN2017/082528 CN2017082528W WO2017186174A1 WO 2017186174 A1 WO2017186174 A1 WO 2017186174A1 CN 2017082528 W CN2017082528 W CN 2017082528W WO 2017186174 A1 WO2017186174 A1 WO 2017186174A1
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WO
WIPO (PCT)
Prior art keywords
signaling
information
hybrid automatic
ack
automatic retransmission
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PCT/CN2017/082528
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French (fr)
Chinese (zh)
Inventor
李新彩
苟伟
赵亚军
彭佛才
杨玲
Original Assignee
中兴通讯股份有限公司
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Priority to CN201610281802.3 priority Critical
Priority to CN201610281802.3A priority patent/CN107332646A/en
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2017186174A1 publication Critical patent/WO2017186174A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access, e.g. scheduled or random access
    • H04W74/08Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0808Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using carrier sensing, e.g. as in CSMA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. van Duuren system ; ARQ protocols
    • H04L1/1822Automatic repetition systems, e.g. van Duuren system ; ARQ protocols involving configuration of ARQ with parallel processes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. van Duuren system ; ARQ protocols
    • H04L1/1812Hybrid protocols
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. van Duuren system ; ARQ protocols
    • H04L1/1829Arrangements specific to the receiver end
    • H04L1/1848Time-out mechanisms
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. van Duuren system ; ARQ protocols
    • H04L1/1829Arrangements specific to the receiver end
    • H04L1/1854Scheduling and prioritising arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. van Duuren system ; ARQ protocols
    • H04L1/1829Arrangements specific to the receiver end
    • H04L1/1864ARQ related signaling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. van Duuren system ; ARQ protocols
    • H04L1/1867Arrangements specific to the transmitter end
    • H04L1/188Time-out mechanisms
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. van Duuren system ; ARQ protocols
    • H04L1/1867Arrangements specific to the transmitter end
    • H04L1/1896ARQ related signaling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055Physical resource allocation for ACK/NACK
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607Details of the supervisory signal
    • H04L1/1671Details of the supervisory signal the supervisory signal being transmitted together with control information

Abstract

Provided are an HARQ-ACK transmission method and apparatus. The method comprises: determining, by means of a predefinition or a signalling indication, an HARQ-ACK to be transmitted and a resource location on an unlicensed carrier transmitting the HARQ-ACK; executing listen before talk (LBT) on the unlicensed carrier; and after the LBT is successfully executed, transmitting the HARQ-ACK on the resource location. By means of the embodiments of the present disclosure, impacts of the structure of a new frame and LBT on the transmission of an original timing relationship are addressed, thereby improving the transmission probability and the feedback flexibility of an HARQ-ACK, and effectively improving the system performance.

Description

Method and device for transmitting HARQ-ACK information Technical field

The present disclosure relates to the field of communications, and in particular to a method and an apparatus for transmitting HARQ-ACK information.

Background technique

Long-Term Evolution (LTE) systems use unlicensed carrier work, which is an important part of the LTE evolution process. This technology will enable LTE systems to use existing unlicensed carriers, greatly increasing the potential spectrum resources of LTE systems, enabling LTE systems to achieve lower spectrum costs.

There are two main modes for LTE to use non-authorization. One is Carrier Aggregation (CA), one is used as an auxiliary component carrier, and the other is Dual Connectivity (DC). Access mode.

The unlicensed carrier introduces the Listen Before Talk (LBT) mechanism, and the terminal (ie, the user equipment UE) feeds back the acknowledgment or non-acknowledgement on the unlicensed carrier (Acknowledgement/Non-Acknowledgement, ACK/ The timing relationship between the physical downlink shared channel (PDSCH) and the Hybrid Automatic Repeat Request-Acknowledgement (HARQ-ACK) may not be guaranteed or The efficiency is relatively low. Moreover, since the frame structure used for data transmission on the unlicensed carrier is different from the authorized carrier, the timing and transmission of the HARQ-ACK and the PDSCH need to be reconsidered. Therefore, there is a problem in the related art that the HARQ-ACK transmission probability and the feedback efficiency are relatively low.

In view of the above problems, an effective solution has not been proposed in the related art.

Summary of the invention

The embodiment of the present disclosure provides a method and an apparatus for transmitting hybrid automatic retransmission-acknowledgment HARQ-ACK information, so as to at least solve the probability of transmitting HARQ-ACK information existing in the related art. A problem with low feedback efficiency.

According to an embodiment of the present disclosure, a method for transmitting hybrid automatic retransmission-acknowledgment HARQ-ACK information is provided, including: determining HARQ-ACK information to be transmitted and transmitting the HARQ by means of predefined or signaling indication manner a resource location on an unlicensed carrier of the ACK information; performing an LBT on the unlicensed carrier; and transmitting the HARQ-ACK information on the resource location after the LBT is successfully executed.

Optionally, the signaling includes at least one of: a carrier indication that feeds back the HARQ-ACK information; a frequency domain resource location that sends the HARQ-ACK information; a subframe position that feeds back an acknowledgment or a non-acknowledgment ACK/NACK Or a set of subframes; a HARQ process number or a process group number of the physical downlink shared channel PDSCH that needs to feed back an ACK/NACK; signaling for indicating whether to delay transmission of the HARQ-ACK information; delay sending the HARQ- The time of the ACK information; the size of the predefined ACK/NACK transmission window; the HARQ-ACK information is fed back to the size of the sliding window of the physical downlink shared channel PDSCH in the plurality of transmission units, wherein the sliding window includes a predetermined number of consecutive downlink transmission units that are variable in position; the HARQ-ACK information is fed back to a granularity of a sliding window slip of a physical downlink shared channel PDSCH in a plurality of corresponding transmission units; and the HARQ-ACK information feedback corresponds to a plurality of The size of the sliding window adjustment of the physical downlink shared channel PDSCH in the transmission unit; the size of the HARQ-ACK information.

Optionally, the HARQ-ACK information includes an acknowledgment or non-acknowledgment ACK/NACK corresponding to the at least one transmission unit, where the ACK/NACK corresponding to the at least one transmission unit includes at least one of: a predefined time window or The ACK/NACK of the physical downlink shared channel PDSCH corresponding to the two or more transmission units in the sliding window indicated by the signaling; the physical downlink shared channel PDSCH process number or the ACK/NACK corresponding to the process group number indicated by the signaling; High-level signaling and/or downlink control information: ACK/NACK corresponding to the transmission unit dynamically indicated by the DCI; all from the ACK/NACK corresponding to the transmission unit where the physical downlink shared channel PDSCH is last feedback to the current feedback time The ACK/NACK corresponding to the transmission unit where the PDSCH of the predefined timing relationship is located.

Optionally, the transmission unit comprises one of: one or more subframes, one or more time slots, and one or more orthogonal frequency division multiplexing OFDM symbols.

Optionally, the predefined timing relationship is that the time difference between the location where the transmission unit where the PDSCH is located and the location where the ACK/NACK is transmitted is greater than or equal to n transmission units, where n is a positive integer.

Optionally, determining the HARQ-ACK information to be sent and the resource location for sending the HARQ-ACK information by means of signaling indicates: acquiring the received radio resource control RRC message and/or downlink control information, and carrying the DCI signaling Decoding the HARQ-ACK information to be transmitted and the resource location for transmitting the HARQ-ACK information according to the obtained signaling.

Optionally, obtaining the signaling carried in the received DCI signaling includes: acquiring the signaling carried in at least one of the following signaling included in the received DCI signaling: a downlink authorization DL Grant, public information indication, uplink grant UL grant, group-user equipment Group-UE DCI indication.

Optionally, when the HARQ-ACK information includes an acknowledgment or non-acknowledgement ACK/NACK corresponding to a transmission unit where all physical downlink shared channel PDSCHs in a time window are located, the HARQ-ACK information feeds back a corresponding PDSCH slip. The window slides according to the sliding granularity indicated by the signaling, or the granularity of a time window length, or the granularity of the sliding window length, or the granularity of k transmission units, where k is a positive integer.

Optionally, the time domain resource location for sending the HARQ-ACK information includes one of: a first uplink transmission unit location after the downlink burst burst; a location indicated by the signaling; according to a last physical downlink shared channel The location of the transmission unit where the PDSCH is located plus the location determined by the q transmission units, where q is a predefined value or the value of the signaling configuration; q transmission units are added according to the location of the last transmission unit in the sliding window of the PDSCH The determined location, where q is the value of a predefined value or signaling configuration.

Optionally, the location of the frequency domain resource that sends the HARQ-ACK information is determined by at least one of: determining, according to the location of the physical resource block PRB indicated by the signaling. Determining the frequency domain resource of the HARQ-ACK information; determining the frequency domain resource for transmitting the HARQ-ACK information according to the correspondence between the interleaving unit and the control channel element index CCE index of the control channel corresponding to the physical downlink shared channel PDSCH; After the statically configured frequency domain resource set, the frequency domain resource that sends the HARQ-ACK information is determined according to the transmission power control TPC command or the allocated resource index ARI signaling in the secondary cell Scell uplink and downlink control information DCI.

Optionally, the physical resource blocks PRB included in the interleaving unit are uniformly and discretely distributed within a system bandwidth; and/or, different user equipment UEs multiplex the same interleaving unit by means of code division or time division.

Optionally, when the HARQ-ACK information includes HARQ-ACK information corresponding to multiple transmission units on one carrier, the size of the HARQ-ACK information is determined by at least one of: by the HARQ-ACK The size of the sliding window of the physical downlink shared channel PDSCH in the plurality of transmission units corresponding to the information feedback is determined; and is received by the sliding window of the physical downlink shared channel PDSCH in the plurality of transmission units corresponding to the HARQ-ACK information feedback Determining the number of PDSCHs corresponding to the user equipment UE; determining the value of the last downlink configuration index DAI received in the sliding window of the physical downlink shared channel PDSCH of the plurality of transmission units corresponding to the HARQ-ACK information feedback Determined by the value of the last received DAI; determined by the number of PDSCHs corresponding to the user equipment UE included in the previous downlink burst burst; the size of the HARQ-ACK information indicated by the signaling is determined.

Optionally, when the HARQ-ACK information includes the HARQ-ACK information of all the carriers in the uplink control information UCI cell group, sending the HARQ-ACK information on the resource location includes: The HARQ-ACK information of all carriers is cascaded; the HARQ-ACK information of all the carriers after the concatenation is sent at the resource location.

Optionally, sending the HARQ-ACK information on the resource location includes: transmitting, at the resource location, the HARQ-ACK information and at least one of the following information: a physical downlink corresponding to the HARQ-ACK information Process number information of the shared channel PDSCH, the resource Offset information of the source location and the time domain resource location indicated by the predetermined or the signaling.

Optionally, determining, by means of signaling, the location of the resource for sending the HARQ-ACK information includes: determining, by using two signalings, a resource location for sending the HARQ-ACK information, where the first signaling is used to indicate At least one of the following information: scheduling information for transmitting the HARQ-ACK information, frequency domain resource size, window size of the PDSCH requiring feedback, acknowledgment or non-acknowledgment ACK/NACK size; second signaling is used to indicate transmission The time domain location of the HARQ-ACK information and/or the physical resource block PRB resource location.

Optionally, after performing the listening and speaking LBT on the unlicensed carrier, the method further includes: when performing, at a predefined location of the unlicensed carrier or a feedback location indicated by the signaling When the LBT fails, the HARQ-ACK information is transmitted by using a nearest transmission unit on the authorized carrier included in the predetermined cell group, or the transmission of the HARQ-ACK information is abandoned; when a predefined location or location of the unlicensed carrier is used When the LBT failure is performed on the feedback position indicated by the signaling, and the HARQ-ACK information is all ACK or the number of ACKs in the HARQ-ACK information exceeds a threshold number, the LBT is fed back on the predefined authorized carrier. Failure information.

Optionally, sending the HARQ-ACK information by using a nearest transmission unit on the authorized carrier included in the predetermined cell group comprises: transmitting by using a nearest periodic reserved transmission unit on the authorized carrier included in the predetermined cell group. The HARQ-ACK information.

According to another embodiment of the present disclosure, a method for transmitting hybrid automatic retransmission-acknowledgment HARQ-ACK information is provided, including: transmitting signaling to a user equipment UE, where the signaling is used to indicate the UE HARQ - Relevant indication information for ACK information transmission and resource location on an unlicensed carrier that transmits the HARQ-ACK information.

Optionally, the signaling includes at least one of: a carrier indication that feeds back the HARQ-ACK information; a frequency domain resource location that sends the HARQ-ACK information; a subframe position that feeds back an acknowledgment or a non-acknowledgment ACK/NACK Or a set of subframes; a HARQ process number or a process group number of the physical downlink shared channel PDSCH that needs to feed back an ACK/NACK; signaling for indicating whether to delay transmission of the HARQ-ACK information; delay sending the HARQ- ACK The time of the information; the size of the predefined ACK/NACK transmission window; the HARQ-ACK information is fed back to the size of the sliding window of the physical downlink shared channel PDSCH of the plurality of transmission units corresponding to the location, wherein the sliding window includes a location a predetermined number of consecutive downlink transmission units; the HARQ-ACK information feedbacks a granularity of sliding window sliding of the physical downlink shared channel PDSCH in the plurality of transmission units; the HARQ-ACK information feedback corresponding to multiple The size of the sliding window adjustment of the physical downlink shared channel PDSCH in the transmission unit; the size of the HARQ-ACK information.

Optionally, the HARQ-ACK information includes an acknowledgment or non-acknowledgment ACK/NACK corresponding to the at least one transmission unit, where the ACK/NACK corresponding to the at least one transmission unit includes at least one of: a predefined time window or The ACK/NACK of the physical downlink shared channel PDSCH corresponding to the two or more transmission units in the sliding window indicated by the signaling; the physical downlink shared channel PDSCH process number or the ACK/NACK corresponding to the process group number indicated by the signaling; High-level signaling and/or downlink control information: ACK/NACK corresponding to the transmission unit dynamically indicated by the DCI; all from the ACK/NACK corresponding to the transmission unit where the physical downlink shared channel PDSCH is last feedback to the current feedback time The ACK/NACK corresponding to the transmission unit where the PDSCH of the predefined timing relationship is located.

Optionally, the transmission unit comprises one of: one or more subframes, one or more time slots, and one or more orthogonal frequency division multiplexing OFDM symbols.

Optionally, the predefined timing relationship is that the time difference between the location where the transmission unit where the PDSCH is located and the location where the ACK/NACK is transmitted is greater than or equal to n transmission units, where n is a positive integer.

Optionally, the sending the signaling to the UE includes: carrying the signaling in a radio resource control RRC message and/or downlink control information DCI signaling; the RRC and/or carrying the signaling Or DCI is sent to the UE.

Optionally, the carrying the signaling in the DCI signaling includes: carrying the signaling in at least one of the following signaling included in the DCI signaling: a downlink grant DL grant, a public information indication, Uplink grant UL grant, group-user equipment Group-UE DCI indication.

Optionally, before the sending the signaling to the UE, the method further includes: semi-statically configuring, for the UE, a frequency domain resource set for sending the HARQ-ACK information, where the DCI letter And a frequency domain resource for transmitting the HARQ-ACK information used by the UE from the set of frequency domain resources.

Optionally, the sending the signaling to the UE includes: sending signaling to the UE twice, where the first signaling is used to indicate at least one of: sending, by the UE, the HARQ - scheduling information of the ACK information, the size of the frequency domain resource, the window size of the PDSCH to be fed back, the acknowledgment or non-acknowledgment ACK/NACK size; the second signaling is used to indicate the time domain in which the UE transmits the HARQ-ACK information Location and/or physical resource block PRB resource location.

According to another embodiment of the present disclosure, there is provided a transmitting apparatus for hybrid automatic retransmission-acknowledgment HARQ-ACK information, comprising: a determining module, configured to determine a HARQ-ACK to be transmitted by means of a predefined or signaling indication manner Information and a resource location on the unlicensed carrier that sends the HARQ-ACK information; an execution module, configured to perform an LBT after the first listening on the unlicensed carrier; and the first sending module is configured to succeed in executing the LBT Thereafter, the HARQ-ACK information is transmitted at the resource location.

According to another embodiment of the present disclosure, there is provided a transmitting apparatus for hybrid automatic retransmission-acknowledgment HARQ-ACK information, comprising: a second transmitting module, configured to send signaling to a user equipment UE, wherein the signaling Correlation indication information indicating the UE HARQ-ACK information transmission and a resource location on an unlicensed carrier transmitting the HARQ-ACK information.

According to still another embodiment of the present disclosure, a storage medium is also provided. The storage medium includes a stored program, wherein the program, when executed, performs the method of any of the above.

According to still another embodiment of the present disclosure, there is also provided a processor for running a program, wherein the program is executed to perform the method of any of the above.

Through the present disclosure, since the HARQ-ACK information to be transmitted and the resource location determined by means of predefined or signaling indication, the structure of the new frame and the influence of the LBT influence on the original timing relationship transmission can be effectively solved, and the impact is improved. Probability and Countermeasure of HARQ-ACK Information Transmission The flexibility of feeding improves the system performance.

DRAWINGS

The drawings described herein are provided to provide a further understanding of the present disclosure, which is a part of the present disclosure, and the description of the present disclosure and the description thereof are not intended to limit the disclosure. In the drawing:

1 is a first flowchart of a method of transmitting HARQ-ACK information according to an embodiment of the present disclosure;

2 is a second flowchart related to a method of transmitting HARQ-ACK information according to an embodiment of the present disclosure;

3 is a flowchart of processing on a base station side according to an embodiment of the present disclosure;

4 is a flowchart of processing on a terminal side according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram 1 of PDSCH and corresponding HARQ-ACK information feedback according to an embodiment of the present disclosure; FIG.

6 is a schematic diagram 2 of PDSCH and corresponding HARQ-ACK information feedback according to an embodiment of the present disclosure;

FIG. 7 is a schematic diagram 3 of PDSCH and corresponding HARQ-ACK information feedback according to an embodiment of the present disclosure; FIG.

FIG. 8 is a schematic diagram 4 of PDSCH and corresponding HARQ-ACK information feedback according to an embodiment of the present disclosure; FIG.

9 is a first schematic diagram of ACK/NACK and PDSCH timing relationship according to an embodiment of the present disclosure;

10 is a second schematic diagram of ACK/NACK and PDSCH timing relationship according to an embodiment of the present disclosure;

11 is a schematic diagram of a HARQ-ACK information triggering and transmitting process according to an embodiment of the present disclosure;

FIG. 12 is a structural block diagram of a transmitting apparatus of first HARQ-ACK information according to an embodiment of the present disclosure; FIG.

FIG. 13 is a structural block diagram of a second correlation apparatus for transmitting HARQ-ACK information according to an embodiment of the present disclosure.

detailed description

The present disclosure will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

It is to be understood that the terms "first", "second", and the like in the specification and claims of the present disclosure are used to distinguish similar objects, and are not necessarily used to describe a particular order or order.

In the embodiment of the present disclosure, a method for transmitting HARQ-ACK information (hereinafter abbreviated as HARQ-ACK) is provided, and FIG. 1 is a first flowchart of a method for transmitting HARQ-ACK according to an embodiment of the present disclosure, as shown in the figure. As shown in Figure 1, the process includes the following steps:

Step S102: Determine, by means of a predefined or signaling indication, a HARQ-ACK to be sent and a resource location on an unlicensed carrier that sends the HARQ-ACK.

Step S104, performing an listening on the unlicensed carrier and then speaking the LBT;

Step S106: After the foregoing LBT is successfully executed, the HARQ-ACK is sent at the resource location.

The user equipment UE may be performed to perform the foregoing operations.

Through the foregoing steps, it is possible to determine which HARQ-ACKs to be transmitted and the location of the transmitted resources in a predefined or signaling manner, so that the HARQ-ACK can be sent at the determined location, thereby avoiding new frame structure and LBT influence. The problem of the impact of the original timing relationship transmission, improve the probability of HARQ-ACK transmission and the flexibility of feedback, and effectively improve system performance.

In an optional embodiment, the foregoing signaling may include at least one of: a carrier indication that feeds back HARQ-ACK; a frequency domain resource location that sends a HARQ-ACK; and a feedback acknowledgement Or a subframe position or a subframe set that does not acknowledge the ACK/NACK; a HARQ process number or a process group number of the physical downlink shared channel PDSCH that needs to feed back the ACK/NACK; signaling for indicating whether the capability of delaying the transmission of the HARQ-ACK is available , that is, whether the HARQ-ACK can be delayed to be transmitted; the time when the HARQ-ACK is delayed to be transmitted; the size of the predefined ACK/NACK transmission window; and the sliding window of the physical downlink shared channel PDSCH in the plurality of transmission units corresponding to the HARQ-ACK feedback a size, wherein the sliding window includes a predetermined number of consecutive downlink transmission units that are variable in position; the granularity of sliding window sliding of the physical downlink shared channel PDSCH in the plurality of transmission units corresponding to the HARQ-ACK feedback; the HARQ - ACK feedback the size of the sliding window adjustment of the physical downlink shared channel PDSCH in the plurality of transmission units; the size of the HARQ-ACK. In this embodiment, the carrier indication of the feedback HARQ-ACK may be used to indicate two or more carriers for feeding back HARQ-ACK.

In an optional embodiment, the foregoing HARQ-ACK includes an acknowledgment or non-acknowledgement ACK/NACK corresponding to the at least one transmission unit, where the ACK/NACK corresponding to the at least one transmission unit includes at least one of the following: a predefined time The two or more transmission units in the sliding window indicated by the window or the signaling correspond to the ACK/NACK of the PDSCH; the physical downlink shared channel PDSCH process number indicated by the signaling or the ACK/NACK corresponding to the process group number; the upper layer signaling and/or the downlink Controlling the ACK/NACK corresponding to the transmission unit dynamically indicated by the DCI; all the timing relationships satisfying the predefined timing relationship from the ACK/NACK corresponding to the transmission unit where the physical downlink shared channel PDSCH is last feedback to the current feedback time The ACK/NACK corresponding to the transmission unit where the PDSCH is located. The above-mentioned predefined or signaling-informed HARQ-ACK is a HARQ-ACK of the feedback that the user equipment needs to obtain, and the user equipment can obtain the HARQ-ACK according to the report and report the HARQ-ACK.

In an optional embodiment, the foregoing transmission unit may include one of: one or more subframes, one or more time slots, and one or more orthogonal frequency division multiplexing OFDM symbols. In this embodiment, when the transmission unit includes a plurality of OFDM symbols, the length of the plurality of OFDM symbols should be less than or equal to the length of one time window.

In an optional embodiment, the predefined timing relationship is that the time difference between the location where the PDSCH is located and the location where the ACK/NACK is sent is greater than or equal to n transmission units. Where n is a positive integer.

In an optional embodiment, determining, by means of signaling, the HARQ-ACK to be sent and the resource location for transmitting the HARQ-ACK include: acquiring a received Radio Resource Control (RRC) message and/or Or the signaling carried in the Downlink Control Information (DCI) signaling; determining the HARQ-ACK to be transmitted and the resource location of sending the HARQ-ACK according to the obtained signaling. In this embodiment, the foregoing signaling may be sent by the base station, and the base station may send the foregoing signaling by using an RRC message or DCI signaling. Optionally, the signaling may be used to indicate that at least two are used for feedback HARQ-ACK. Carrier.

In an optional embodiment, the acquiring the received signaling in the DCI signaling includes: obtaining the foregoing signaling carried in at least one of the following signaling included in the received DCI signaling: downlink authorization (Downlink) Grant (referred to as DL grant), public information indication, uplink grant (uplink grant, referred to as UL grant), group-user equipment Group-UE DCI indication. In this embodiment, the signaling is carried in at least one of the foregoing DL grant, the public information indication, the UL grant, and the Group-UE DCI indication.

In an optional embodiment, when the foregoing HARQ-ACK includes an acknowledgment or non-acknowledgement ACK/NACK corresponding to a transmission unit where all physical downlink shared channel PDSCHs in a time window are located, the HARQ-ACK feedback corresponds to the PDSCH. The sliding window slides according to the sliding granularity indicated by the signaling, or the granularity of a time window length, or the granularity of the sliding window length, or the granularity of k transmission units, where k is a positive integer. In this embodiment, the k transmission unit lengths may be less than or equal to the time window length.

In an optional embodiment, the time domain resource location for transmitting the foregoing HARQ-ACK includes one of: a first uplink transmission unit location after the downlink burst burst; a location indicated by the signaling; and a last physical downlink The location of the transmission unit where the shared channel PDSCH is located plus the location determined by the q transmission units, where q is a predefined value or the value of the above signaling configuration; q transmissions are added according to the location of the last transmission unit in the sliding window of the PDSCH The location determined by the unit, where q is a predefined value or the value of the above signaling configuration.

In an optional embodiment, the location of the frequency domain resource that sends the foregoing HARQ-ACK may be determined by at least one of the following: determining, according to the physical resource block (Physical Resource Block, PRB) position indicated by the signaling. a frequency domain resource of the HARQ-ACK; determining a frequency domain resource for transmitting the HARQ-ACK according to a correspondence between a control unit element index (CCE index) of the control channel corresponding to the physical downlink shared channel PDSCH; After determining the frequency domain resource set of the upper half semi-static configuration, the transmitting the HARQ-ACK is determined according to the Transmit Power Control (TPC) command or the allocated resource index ARI signaling in the uplink and downlink control information DCI of the secondary cell Scell. Frequency domain resources.

In an optional embodiment, the physical resource block (Physical Resource Block, PRB for short) included in the interleaving unit is uniformly and discretely distributed within the system bandwidth; and/or, the different user equipments UE pass the code division or the time division manner. The same interleaved unit is multiplexed. Optionally, the foregoing frequency domain resources may also be uniformly and discretely distributed within the system bandwidth.

In an optional embodiment, when the foregoing HARQ-ACK includes a HARQ-ACK corresponding to multiple transmission units on one carrier, the size of the foregoing HARQ-ACK may be determined by at least one of the following manner: by HARQ-ACK feedback The size of the sliding window of the physical downlink shared channel PDSCH in the corresponding multiple transmission units is determined (for example, may be the same as the size of the sliding window); received by the sliding window of the PDSCH in the plurality of transmission units corresponding to the HARQ-ACK feedback The number of PDSCHs corresponding to the user equipment UE is determined (for example, the PDSCH size corresponding to the UE may be the same); the last downlink configuration received in the sliding window of the PDSCH in the plurality of transmission units corresponding to the HARQ-ACK feedback The value of the index DAI is determined (eg, may be the same as the value of the DAI); determined by the value of the last received DAI (eg, may be the same as the value of the DAI); and the user equipment contained in the last downlink burst burst The number of PDSCHs corresponding to the UE is determined (for example, the PDSCH size corresponding to the UE may be the same); the size of the HARQ-ACK indicated by the foregoing signaling is determined (for example, may be the same as the size of the HARQ-ACK indicated by the signaling) .

In an optional embodiment, when the foregoing HARQ-ACK includes an uplink control information (UCI), all carriers in the cell group. In the HARQ-ACK, transmitting the HARQ-ACK on the resource location includes: cascading HARQ-ACKs of all carriers in a predetermined order; and transmitting HARQ-ACKs of all carriers after the concatenation on the resource locations. In this embodiment, the HARQ-ACK of the carrier may be cascaded according to the carrier index from small to large, or the HARQ-ACK of the carrier may be cascaded according to the carrier index from the largest to the smallest, or The carrier's HARQ-ACK may also be cascaded using other carrier sequences.

In an optional embodiment, transmitting the HARQ-ACK on the resource location includes: transmitting the HARQ-ACK at the resource location and at least one of the following: a process ID of the physical downlink shared channel PDSCH corresponding to the HARQ-ACK Information, offset information of the above resource location and a predetermined time domain resource location indicated by the signaling. That is, the above-described HARQ-ACK is transmitted to the base station, and the above-described process number information and offset information are collectively transmitted to the base station. For the specific transmission method, refer to the eleventh embodiment described later.

In an optional embodiment, determining, by means of signaling, a resource location for transmitting the foregoing HARQ-ACK includes determining, by using two signalings, a resource location for transmitting a HARQ-ACK, where the first signaling is used to indicate At least one of the following information: scheduling information for transmitting HARQ-ACK, frequency domain resource size (ie, size of frequency domain resource for transmitting HARQ-ACK), window size of PDSCH requiring feedback, acknowledgement or non-acknowledgement ACK /NACK size; the second signaling is used to indicate the time domain location of the HARQ-ACK and/or the physical resource block PRB resource location.

In an optional embodiment, after performing the LBT after listening to the unlicensed carrier, the method further includes: when performing the LBT failure on the predefined location of the unlicensed carrier or the feedback location indicated by the signaling, Transmitting the HARQ-ACK by using the nearest transmission unit on the authorized carrier included in the predetermined cell group, or abandoning the transmission of the HARQ-ACK; when performing the LBT failure on the predefined location of the unlicensed carrier or the feedback position indicated by the signaling, And when the number of ACKs in the HARQ-ACK is all ACK or HARQ-ACK exceeds a threshold number, the information of the LBT failure is fed back on the predefined authorized carrier. In this embodiment, when the HARQ-ACK cannot be transmitted by using the unlicensed carrier, it may be sent to the authorized carrier for transmission.

In an optional embodiment, transmitting the HARQ-ACK by using a nearest transmission unit on the authorized carrier included in the predetermined cell group comprises: utilizing a nearest periodic reserved transmission unit on the authorized carrier included in the predetermined cell group. Send HARQ-ACK. That is, when the HARQ-ACK is transmitted using the authorized carrier, the HARQ-ACK may be transmitted using the resource reserved periodically on the authorized carrier.

A method for transmitting a HARQ-ACK is also provided in the embodiment of the present disclosure. FIG. 2 is a second flowchart related to a method for transmitting a HARQ-ACK according to an embodiment of the present disclosure. As shown in FIG. 2, the process includes the following steps. step:

Step S202: Send signaling to the user equipment UE, where the signaling is used to indicate related indication information of the UE HARQ-ACK transmission and a resource location on the unlicensed carrier that sends the HARQ-ACK.

The performing the foregoing operation may be a base station, where the base station may indicate, by means of signaling, the HARQ-ACK to be sent by the UE and the location of the transmitted resource, so that the UE may send the HARQ-ACK at the determined location, thereby avoiding new The frame structure and LBT affect the impact of the original timing relationship transmission, improve the probability of HARQ-ACK transmission and the flexibility of feedback, and effectively improve system performance.

In an optional embodiment, the foregoing signaling includes at least one of: a carrier indication that feeds back HARQ-ACK; a frequency domain resource location that transmits a HARQ-ACK; a subframe position or a sub-frame address that feeds back an acknowledgment or non-acknowledge ACK/NACK a set of frames; a HARQ process number or a process group number of a physical downlink shared channel PDSCH that needs to be fed back ACK/NACK; a signaling for indicating whether to delay transmission of HARQ-ACK; a time for delaying transmission of HARQ-ACK; a predefined The size of the ACK/NACK transmission window; the size of the sliding window of the PDSCH in the plurality of transmission units corresponding to the HARQ-ACK feedback, wherein the sliding window includes a predetermined number of consecutive downlink transmission units with variable positions; the HARQ- The granularity of the sliding window slip of the PDSCH in the plurality of transmission units corresponding to the ACK feedback; the size of the sliding window adjustment of the PDSCH in the plurality of transmission units corresponding to the HARQ-ACK feedback; and the size of the HARQ-ACK.

In an optional embodiment, the foregoing HARQ-ACK includes at least one transmission unit pair An acknowledgment or non-acknowledgement ACK/NACK, wherein the ACK/NACK corresponding to the at least one transmission unit comprises at least one of: a predefined time window or two or more transmission units within the sliding window indicated by the signaling ACK/NACK of the PDSCH; the ACK/NACK corresponding to the physical downlink shared channel PDSCH process number or the process group number indicated by the signaling; ACK/NACK corresponding to the transmission unit of the high-level signaling and/or downlink control information DCI dynamic indication; The ACK/NACK corresponding to the transmission unit where the PDSCH of the pre-defined timing relationship is located in the period from the ACK/NACK corresponding to the transmission unit in which the physical downlink shared channel PDSCH is located to the current feedback time.

In an optional embodiment, the foregoing transmission unit comprises one of: one or more subframes, one or more time slots, and one or more orthogonal frequency division multiplexing OFDM symbols.

In an optional embodiment, the predefined timing relationship is that the time difference between the location where the PDSCH is located and the location where the ACK/NACK is transmitted is greater than or equal to n transmission units, where n is a positive integer.

In an optional embodiment, the sending the foregoing signaling to the UE includes: carrying the foregoing signaling in a radio resource control RRC message and/or downlink control information DCI signaling; and carrying the foregoing signaling RRC and/or The DCI is sent to the UE.

In an optional embodiment, the carrying the signaling in the DCI signaling includes: carrying the signaling in at least one of the following signaling included in the DCI signaling: a downlink grant DL grant, a public information indication, an uplink Link grant UL grant, group-user equipment Group-UE DCI indication.

In an optional embodiment, before sending the signaling to the UE, the method further includes: semi-statically configuring, for the UE, a frequency domain resource set for transmitting the HARQ-ACK, where the DCI signaling is used from the foregoing A frequency domain resource that transmits a HARQ-ACK used by the UE in the frequency domain resource set. In this embodiment, the base station side may semi-statically configure a frequency domain resource set for the UE, and then the base station side may further indicate the determined frequency domain resource by using DCI signaling. Optionally, the base station side may also indicate the determined frequency domain resource by using other types of signaling (such as the foregoing RRC signaling) after the frequency domain resource set is semi-statically configured.

In an optional embodiment, sending signaling to the UE includes: sending the UE twice. Signaling, where the first signaling is used to indicate at least one of the following: scheduling information for the UE to transmit the HARQ-ACK, frequency domain resource size, window size of the PDSCH requiring feedback, acknowledgment or non-acknowledgement ACK/NACK The second signaling is used to indicate that the UE transmits the time domain location of the HARQ-ACK and/or the physical resource block PRB resource location.

The method for transmitting the unlicensed spectrum HARQ-ACK provided in the present disclosure will be described in detail below with reference to the accompanying drawings and specific embodiments.

Embodiment 1

This embodiment describes the processing procedure on the base station side. The specific process is shown in FIG. 3, and the process includes the following steps:

Step S302: The base station first performs LBT on the unlicensed carrier, and after transmitting, sends relevant indication information (corresponding to the foregoing signaling) for indicating downlink PDSCH data and HARQ-ACK feedback.

The indication information includes at least one of the following:

Feeding back the carrier indication of the HARQ-ACK;

The frequency domain resource location sent by the HARQ-ACK;

a subframe position or a subframe set in which ACK/NACK feedback is located;

The HARQ process number or process group number of the PDSCH that needs to feed back ACK/NACK;

Indicates whether the transmission can be delayed, if the transmission can be delayed, the corresponding delay time or the size of the predefined ACK/NACK transmission window;

The size of the PDSCH feedback sliding window;

The size of the HARQ-ACK codebook (ie, multiple HARQ-ACKs, which may also be simply referred to as codebooks).

The carrier indicating that the HARQ-ACK is sent may be two or more carriers, and the carriers are all unlicensed carriers or include at least one authorized carrier.

Optionally, the foregoing indication information may be carried in one of the following manners:

Method 1: Instruct in the DL grant

The base station simultaneously gives the corresponding ACK/NACK feedback subframe position in the DCI corresponding to the DL grant when the PDSCH is transmitted.

Method 2: Public information indication

With common DCI, for example through DCI format 1C, the timing of all UEs is the same. The ACK/NACK feedback is in the same subframe.

The DCI indication information is sent in the last subframe of the downlink burst or the last two subframes of the downlink burst.

Method 3: UL grant indication or UE-Specific DCI indication

The base station notifies the UE to feed back the subframe position where the ACK/NACK corresponding to the PDSCH is located by using the HARQ-ACK feedback subframe indication field in the DCI. The sub-frame position indication of the feedback may be related to the offset size of the UL grant subframe position.

Method 4: Group-UE DCI indication

Trigger a group of UEs to send ACK/NACK in the same subframe.

Manner 5: The network side firstly configures multiple feedback subframe position groups or different subframe sets, and then dynamically indicates the specific subframe set or location of the feedback through DCI signaling.

Step S304, the base station receives the ACK/NACK at a predefined subframe position or a position of the HARQ-ACK feedback.

Embodiment 2

This embodiment describes the processing procedure on the terminal side (that is, the user equipment side).

A method for transmitting HARQ-ACK is used for the terminal side process as shown in FIG. 4, and includes the following steps:

Step S402, the terminal receives and decodes related indication information (corresponding to the foregoing signaling) sent by the base station to indicate the PDSCH and the HARQ-ACK transmission feedback.

The terminal may obtain the foregoing indication information by means of a blind check, and the indication information of the HARQ-ACK feedback may include at least one of the following:

Feeding back the carrier indication of the HARQ-ACK;

The frequency domain resource location sent by the HARQ-ACK;

The subframe position where the ACK/NACK feedback is located;

The HARQ process number or process group number of the PDSCH that needs to feed back ACK/NACK;

Indicates whether the transmission can be delayed, if the delay is the corresponding delay time or the size of the predefined ACK/NACK transmission window;

The size of the PDSCH feedback sliding window;

HARQ-ACK codebook size, etc.

Step S404, the terminal performs LBT (corresponding to CCA in FIG. 4) on the carrier indicated by the base station.

The moment when the terminal executes the LBT is at least one of the following:

The subframe in which the terminal receives the feedback HARQ-ACK codebook has the indication information of the Physical Uplink Shared Channel (PUSCH) scheduling;

The subframe in which the terminal receives the feedback HARQ-ACK codebook has the trigger information reported by the channel state information (CSI);

Receiving, by the terminal, related signaling indication information sent by the HARQ-ACK;

Step S406: If the LBT is successful, the terminal sends the HARQ-ACK codebook according to a predefined manner and/or signaling indication.

Optionally, the foregoing HARQ-ACK includes an ACK/NACK corresponding to a transmission unit where the at least one PDSCH is located. The PDSCH corresponding to the specific codebook may be determined by a predefined PDSCH window or a PDSCH process number indicated by signaling.

The above codebook size corresponds to the number of received PDSCHs that need to feed back ACK/NACK, or the same size as the sliding window.

The content of the codebook that needs to be fed back includes the ACK/NACK corresponding to the transmission unit where multiple PDSCHs of all carriers in the predetermined cell group are located. The HARQ-ACK codebook of each carrier includes at least one of the following:

ACK/NACK of the PDSCH corresponding to the plurality of transmission units in the sliding window indicated by the predefined or signaling;

The ACK/NACK corresponding to the PDSCH process number or the process group number indicated by the signaling;

The higher layer signaling and the ACK/NACK corresponding to the transmission unit of the DCI dynamic indication.

The ACK/NACK corresponding to the transmission unit in which the PDSCH that satisfies the predefined timing relationship is located from the last feedback of the PDSCH subframe to the current feedback subframe position.

If the subframe LBT is unsuccessful, the LBT continues to be performed at the next subframe or the next indicated feedback location or the location of the data scheduling, and if the handover is still unsuccessful within the predefined time, the reserved resource is sent to the authorized carrier, where The reserved resource may be a resource that is periodically reserved from the base station to the unlicensed carrier to send the PDSCH. Or discard the transmission of this HARQ-ACK.

Embodiment 3

This embodiment describes a method for a terminal to feed back a HARQ-ACK to a received PDSCH:

If the terminal performs LBT successfully on the subframe n, the PDSCH subframe that is greater than or equal to 4 (that is, the subframe difference is greater than or equal to 4) can be fed back in the subframe corresponding to the ACK/ from the end of the last feedback. NACK.

The trigger condition for the terminal to execute the LBT in the subframe is at least one of the following:

Receiving, by the terminal, indication information that the subframe has PUSCH scheduling;

Receiving, by the terminal, trigger information that is reported by the CSI in the subframe;

Receiving, by the terminal, related signaling indication information sent by the HARQ-ACK;

The terminal receives the need to send uplink data in the subframe. The uplink data includes: number of services According to the control information data, the HARQ-ACK feedback and the CSI report are included.

As shown in FIG. 5, it is assumed that the terminal receives the indication information sent by the base station, and the indication information indicates that the UE needs to perform LBT on the subframe 8, and if the UE performs LBT successfully in the subframe, it may send in the subframe 8. Subframes 1, 2, 3 and subframe 4 The UE corresponds to an ACK/NACK corresponding to the PDSCH. If the UE performs LBT success on subframe 8, and subframe 9 still has uplink data to be transmitted, then only subframe 5 is transmitted on subframe 9 to which the UE corresponds to the ACK/NACK of the PDSCH. If the LBT is not successfully executed by the subframe 8, and the UE performs the LBT successfully in the subframe 9, the ACK/NACK of the PDSCH corresponding to the UE from the subframe 1 to the subframe 5 is fed back in the subframe 9. Similarly, if the UE does not succeed in performing the LBT on the subframe 9, and the UE needs to perform the LBT in the subframe 10 and the LBT is successfully executed, the subframe 10 can simultaneously perform the HARQ of the subframe 1 to the subframe 6. The ACK is sent out together.

When the terminal supports transmitting the PUCCH on the carrier, the above HARQ-ACK is transmitted through the PUCCH.

When the terminal does not support transmitting the PUCCH on the carrier, the above HARQ-ACK is transmitted through the PUSCH.

Embodiment 4

This embodiment describes another HARQ-ACK transmission method.

In this embodiment, a PDSCH sliding window is defined, wherein the sliding window can be indicated by a high-level signaling semi-static configuration or DCI.

The terminal only feeds back the ACK/NACK feedback subframe position indicated by the signaling and only satisfies the ACK/ corresponding to the transmission unit where the PDSCH is located in the PDSCH sliding window and satisfies the timing relationship greater than or equal to 4 (ie, the subframe difference is greater than or equal to 4). NACK.

Or the subframe position of the feedback ACK/NACK is located at the position of the last subframe of the sliding window plus 4 subframes, and then if the terminal performs LBT successfully, the ACK/ corresponding to the transmission unit where the PDSCH of all subframes in the sliding window is located. NACK is sent out together.

For example, assume that the size of the predefined sliding window is 4 ms, starting from the first subframe of the DL burst. The UE then performs LBT from subframe 8 in accordance with the last timing of the sliding window plus a predetermined timing relationship of 4 ms. If the LBT is successfully performed in the subframe 8, the ACK/NACK corresponding to the transmission unit in which the PDSCH is located from the subframe 1 to the subframe 4 is fed back. If the LBT is unsuccessful on the subframe 8, the LBT is continuously performed on the subframe 9, and after the LBT is successfully executed, the ACK/NACK corresponding to the transmission unit corresponding to the PDSCH from the subframe 2 to the subframe 5 is transmitted. Similarly, if the LBT is not successfully executed in the subframe 9, the LBT is performed on the subframe 10, and when the LBT is successfully performed on the subframe 10, the ACK corresponding to the transmission unit corresponding to the PDSCH from the subframe 3 to the subframe 6 is transmitted. /NACK.

Conversely, if the terminal performs LBT success in subframe 8, the sliding window slides back 4 subframes, that is, the sliding window starts from subframe 5 to subframe 8, and then the terminal transmits the ACK/NACK corresponding to the window in subframe 12. As shown in Figure 6.

Embodiment 5

This embodiment describes the size and content of the HARQ-ACK codebook transmitted by the terminal.

There are two types included:

The first:

The codebook size fed back by the terminal is the same as the number of subframes of the PDSCH corresponding to the UE in the sliding window. Each PDSCH subframe corresponds to a 1-bit ACK/NACK. If there is a PDSCH corresponding to the UE in the sliding window, feedback can be performed. The size of the ACK/NACK codebook for each feedback is not fixed.

For example, as shown in FIG. From subframe 1 to subframe 7, there are only PDSCHs corresponding to the UE in subframes 2, 4, 5, and 7. Then, in subframe 8, the ACK/NACK corresponding to subframe 2 and subframe 4 can be fed back. Subframe 9 can feed back ACK/NACK corresponding to subframes 2, 4 and subframe 5. The subframe 10 may feed back the ACK/NACK corresponding to the subframes 4 and 5, and the subframe 11 may feed back the subframes 4 and 5 and the HARQ-ACK corresponding to the subframe 7.

In this mode, the terminal determines the codebook that needs feedback by means of the value of DAI in the UL/DL grant. size.

Or DAI is extended to multiple carriers, DAI is represented by a two-dimensional array: one dimension represents the carrier, and the other dimension represents the number of PDSCHs transmitted by the carrier. Through this information, the UE knows the number of bits that each carrier needs to feed back, further reducing the impact of DCI miss detection.

The second type: the HARQ codebook size is determined to be the same as the number of subframes in the window, and the subframes that have not received the PDSCH are fed back NACK.

The base station receives the HARQ process number based on the subframe index, and ignores the corresponding bit that does not transmit the PDSCH.

For example, as shown in FIG. The size of the sliding window in FIG. 8 is 4, and the size of the ACK/NACK codebook is fixed at 4. There are up to 4 feedback opportunities per PDSCH subframe.

The PDSCH sliding window slides at a granularity of one transmission unit or a granularity of time window length or k (k is a positive integer, which may take a value greater than or equal to 2).

Alternatively, the size of the sliding window or the size of the PDSCH feedback window can be dynamically adjusted. For example, if the UE does not succeed in performing the LBT on the subframe 8, the sliding window can be made larger, from 4 to 5, that is, if the terminal performs LBT successfully at the time of the subframe 9, it can feed back from the subframe 1 to The subframe 5 corresponds to an ACK/NACK corresponding to the transmission unit in which the PDSCH is located.

Embodiment 6

This embodiment describes a method in which the HARQ-ACK performs feedback according to the signaling indication.

The foregoing signaling indication may include at least one of the following:

Method 1: DL grant inside instructions

The corresponding ACK/NACK feedback subframe position is also given in the DCI corresponding to the DL grant when the PDSCH is transmitted.

For example, when the ACK/NACK is transmitted on the PUSCH, the offset of the corresponding HARQ-ACK position and the original n+4 position is given by the 2-bit field or other bit field corresponding to the TPC command for PUCCH in the DCI. Where n is the PDSCH correspondence The subframe sent by the DCI.

Or implicitly determining the ACK/NACK subframe position of the feedback through the CCE index corresponding to the PDSCH.

Method 2: Public information indication

With common DCI, for example through DCI format 1C, the timing of all UEs is the same. The ACK/NACK feedback is in the same subframe.

The DCI indication information is sent in the last subframe of the downlink burst or the last two subframes of the downlink burst.

The UE first obtains the C-PDCCH by blindly checking the CRS, and then determines the feedback subframe position and/or the feedback PDSCH process according to the indication information therein. That is, the cell-specific method is adopted.

Method 3: UL grant indication or UE-Specific DCI indication

The base station notifies the UE to feed back the subframe position where the ACK/NACK corresponding to the PDSCH is located by using the HARQ-ACK feedback subframe indication field in the DCI. The sub-frame position indication of the feedback may be related to the offset size of the UL grant subframe position, for example, 00 indicates the first subframe after the indication signaling, and 01 indicates the second subframe after the indication signaling subframe, 10 Indicates a third subframe after the indication signaling subframe, and 11 indicates that the fourth subframe after the signaling subframe is transmitted to transmit the HARQ-ACK codebook.

Method 4: Group-UE DCI indication

Trigger a group of UEs to send ACK/NACK in the same subframe.

Manner 5: The network side firstly configures multiple feedback subframe position groups or different subframe sets, and then dynamically indicates the specific subframe set or location of the feedback through DCI signaling.

For example, the network side first configures the subframe subframe set by the RRC message to include {3, 4, 5, 7}, and the subframe set 2 includes the feedback subframe position of {6, 7, 8, 9}. The subframe set 3 contains feedback subframe positions of {2, 4, 5, 6}, and the subframe set 4 contains feedback subframe positions of {1, 2, 3}. The base station then indicates the final set of subframe positions by 2 bits in the DCI dynamic signaling. Or there is only one candidate subframe position in each set, and the base station dynamically indicates which subframe is ultimately in.

Example 7

This embodiment describes related content included in the above indication signaling.

The indication signaling about the HARQ-ACK transmission sent by the base station to the terminal includes at least one of the following contents:

Transmitting a carrier indication of the HARQ-ACK, including at least one carrier;

Frequency domain resource location;

All the HARQ process numbers or process group numbers of the PDSCHs that need to be fed back ACK/NACK; wherein the group number refers to the high-level signaling semi-statically configuring multiple PDSCH process group number sets, and then dynamically signaling the feedback corresponding sets.

Indicates whether the transmission can be delayed, if the delay time corresponding to the delay can be, or the size of the predefined transmission window;

The size of the PDSCH sliding window, that is, the size of the sliding window of the PDSCH;

The granularity of the sliding window sliding;

The size of the sliding window adjustment;

The ACK/NACK feeds back the subframe position or the subframe set and the like.

The terminal performs data preparation and transmission of HARQ-ACK according to the indication information.

Example eight

This embodiment describes a transmission method in which HARQ-ACK is transmitted in a predefined manner.

The terminal sends the corresponding HARQ-ACK codebook on the corresponding subframe according to a predefined manner, including one of the following:

method one:

The terminal transmits the HARQ-ACK code in the first uplink subframe after the Kth DL burst. The feedback HARQ-ACK codebook is the ACK/ corresponding to the PDSCH of the UE in all the PDSCHs of the UE that meet the greater than or equal to 4 in the Kth DL burst and the last three subframes in the K-1 DL burst. NACK. As shown in Figure 9.

The uplink subframe includes an uplink subframe and a complete subframe.

Method 2: The HARQ-ACK is sent according to the subframe position of the last PDSCH subframe position corresponding to the UE in the Kth DL burst + 4 ms. As shown in Figure 10. The transmitted HARQ-ACK codebook includes the ACK/NACK corresponding to all PDSCHs of the UE in the Kth DL burst.

In this manner, if the subframe in which the HARQ-ACK is transmitted has a corresponding UL grant, the frequency domain resource of the HARQ-ACK is determined according to the DCI indication position corresponding to the UL grant. If not, the transmitted frequency domain resource is determined according to the location of the upper semi-static configuration.

Example nine

In this embodiment, a method of transmitting a HARQ-ACK codebook using a secondary indication will be described.

First, the base station first transmits an initial HARQ-ACK transmitted subframe position through DCI signaling. For example, the terminal is instructed to send a HARQ-ACK in the subframe n+r position, where n is the subframe in which the DCI is located, and r is a positive integer.

Or the terminal prepares the HARQ-ACK codebook in a predefined manner in Embodiment 6, and determines the initial subframe position of the feedback.

Then, if the n+r subframe is a downlink subframe or a new downlink data arrives, the base station may send a new DCI indication message in the subframe n+m subframe, delaying the feedback subframe position, such as delay. To the sub-frame n+r+2. Or dynamically adjust the feedback subframe position, m is a positive integer.

After receiving the indication information, the terminal performs HARQ-ACK transmission in the corresponding subframe according to the indication in the indication signaling.

The reliability or flexibility of HARQ-ACK transmission can be increased by means of secondary indication.

Example ten

This embodiment describes the transmission of the HARQ-ACK by using a multi-level signaling indication method.

The specific process is shown in Figure 11:

The signaling that the base station triggers the HARQ-ACK for the first time in the subframe N includes the ACK/NACK scheduling information, including the size of the transmitted resource, the window size of the PDSCH to be fed back, or the ACK/NACK codebook size.

Then, after receiving the information, the UE prepares the HARQ-ACK codebook data for feedback according to the indication information.

The base station then indicates the subframe position K+x and/or the mapped PRB resource position of the HARQ-ACK transmission a second time in subframe K, where x is equal to 1 or 2 or 3.

The UE then transmits the prepared HARQ-ACK codebook in the indicated subframe according to the indicated subframe position.

Embodiment 11

This embodiment describes uplink HARQ-ACK feedback synchronization.

When the subframe position of the terminal that transmits the HARQ-ACK is not a predefined subframe position, or is not the transmission subframe position indicated by the base station, the terminal needs to transmit additional bits for the base station and the UE to maintain ACK/NACK reporting synchronization.

When the terminal delays the ACK/NACK transmission by one or more subframes according to the result of the LBT, or when the size of the HARQ-ACK codebook is uncertain, the terminal implements the HARQ codebook that the eNB sends to the UE in one of the following manners. Understand the same.

Method 1: The process ID of the corresponding PDSCH is included in the ACK/NACK. For example, if the PDSCH maximum process number is 15, the PDSCH subframe corresponds to 4-bit feedback information, and the first 3 bits are the PDSCH process number followed by 1 bit, which is the value of the ACK/NACK corresponding to the PDSCH subframe.

When receiving the HARQ-ACK codebook, the base station decodes each group of 4 bits to obtain ACK/NACK information corresponding to each PDSCH subframe.

Method 2: Determine by carrying a subframe offset with a predetermined transmission subframe position. Assuming that the feedback window is 4 ms, the offset of the final subframe position from the predefined transmission subframe is indicated by defining 2 bits. For example, 00 represents a predetermined subframe position transmission, 01 represents a predetermined subframe position, and is shifted backward by one subframe, 10 represents that the predetermined subframe position is shifted backward by two subframes, and 11 represents a predetermined subframe position backward biased. Move 3 subframes. Then 1 bit is followed to indicate the ACK/NACK value.

Example twelve

This embodiment describes another case of HARQ-ACK transmission.

When a certain PUCCH cell group configured by the terminal, or a UCI cell group, includes an authorized carrier, the terminal may further transmit the HARQ-ACK or UCI of all carriers of the cell group to a predetermined authorized carrier.

The specific process is as follows:

First, some resources are periodically reserved in a predefined authorized carrier or a certain semi-statically configured authorized carrier.

If the terminal fails to transmit or the LBT is not successful at the designated location of the designated unlicensed carrier, the terminal transmits the HARQ-ACK or UCI information of the cell group to the reserved resource location of the carrier.

The method for transmitting unlicensed spectrum uplink control information provided in the embodiment of the present disclosure can solve the specific problem that LTE performs uplink HARQ-ACK transmission on an unlicensed carrier. And the method is suitable for the characteristics of the unlicensed carrier and the characteristics of the Frame structure type 3.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform. However, hardware can also be used, but in many cases the former is a better implementation. Based on such understanding, the technical solution in the embodiments of the present disclosure may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium (such as ROM/RAM, The disk, the optical disk, includes a number of instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present disclosure.

In the embodiment, a device for transmitting a HARQ-ACK is provided, which is used to implement the foregoing embodiments and preferred embodiments, and details are not described herein. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.

FIG. 12 is a structural block diagram of a first HARQ-ACK transmitting apparatus according to an embodiment of the present disclosure. As shown in FIG. 12, the apparatus includes a determining module 122, an executing module 124, and a first transmitting module 126. Description.

The determining module 122 is configured to determine, by means of a predefined or signaling indication, a HARQ-ACK to be sent and a resource location on the unlicensed carrier that sends the HARQ-ACK; the executing module 124 is connected to the determining module 122, and is set to The LBT is performed on the unlicensed carrier, and the first sending module 126 is connected to the execution module 124, and is configured to send the HARQ-ACK at the resource location after the LBT is successfully executed.

In an optional embodiment, the foregoing signaling includes at least one of: a carrier indication that feeds back HARQ-ACK; a frequency domain resource location that transmits a HARQ-ACK; a subframe position or a sub-frame address that feeds back an acknowledgment or non-acknowledge ACK/NACK a set of frames; a HARQ process number or a process group number of a physical downlink shared channel PDSCH that needs to be fed back ACK/NACK; a signaling for indicating whether to delay transmission of HARQ-ACK; a time for delaying transmission of HARQ-ACK; a predefined The size of the ACK/NACK transmission window; the size of the sliding window of the PDSCH in the plurality of transmission units corresponding to the HARQ-ACK feedback, wherein the sliding window includes a predetermined number of consecutive downlink transmission units with variable positions; HARQ-ACK feedback Corresponding to multiple transmission units The granularity of the sliding window sliding of the PDSCH; the size of the sliding window adjustment of the PDSCH in the plurality of transmission units corresponding to the HARQ-ACK feedback; the size of the HARQ-ACK.

In an optional embodiment, the foregoing HARQ-ACK includes an acknowledgment or non-acknowledgement ACK/NACK corresponding to the at least one transmission unit, where the ACK/NACK corresponding to the at least one transmission unit includes at least one of the following: a predefined time The ACK/NACK of the PDSCH corresponding to the two or more transmission units in the sliding window indicated by the foregoing signaling or the above-mentioned signaling; the physical downlink shared channel PDSCH process number or the ACK/NACK corresponding to the process group number indicated by the signaling; the upper layer signaling and/or Or the ACK/NACK corresponding to the transmission unit dynamically indicated by the downlink control information DCI; all the pre-defined timings are met from the time when the ACK/NACK corresponding to the transmission unit where the physical downlink shared channel PDSCH is last feedback to the current feedback time The ACK/NACK corresponding to the transmission unit where the PDSCH of the relationship is located.

In an optional embodiment, the foregoing transmission unit comprises one of: one or more subframes, one or more time slots, and one or more orthogonal frequency division multiplexing OFDM symbols.

In an optional embodiment, the predefined timing relationship is that the time difference between the location where the PDSCH is located and the location where the ACK/NACK is transmitted is greater than or equal to n transmission units, where n is a positive integer.

In an optional embodiment, the determining module 122 may determine the HARQ-ACK to be sent and the resource location of sending the HARQ-ACK by means of signaling: acquiring the received radio resource control RRC message and/or The foregoing signaling carried in the DCI signaling of the downlink control information; determining the HARQ-ACK to be transmitted and the resource location of transmitting the HARQ-ACK according to the obtained signaling.

In an optional embodiment, the determining module 122 may obtain the signaling carried in the received DCI signaling by acquiring the signaling carried in at least one of the following signalings included in the received DCI signaling. : downlink grant DL grant, public information indication, uplink grant UL grant, group-user equipment Group-UE DCI indication.

In an optional embodiment, when the foregoing HARQ-ACK includes a confirmation or non-confirmation corresponding to the transmission unit where the physical downlink shared channel PDSCH is located in a time window. In the case of ACK/NACK, the sliding window of the PDSCH corresponding to the HARQ-ACK feedback is slid according to the sliding granularity indicated by the signaling, or the granularity of a time window length, or the granularity of the sliding window length, or the granularity of k transmission units, wherein k is a positive integer.

In an optional embodiment, the time domain resource location for transmitting the foregoing HARQ-ACK includes one of: a first uplink transmission unit location after the downlink burst burst; a location indicated by the signaling; and a last physical downlink The location of the transmission unit where the shared channel PDSCH is located plus the location determined by the q transmission units, where q is a predefined value or a signaled configuration value; q transmission units are added according to the location of the last transmission unit in the sliding window of the PDSCH The determined location, where q is the value of a predefined value or signaling configuration.

In an optional embodiment, the frequency domain resource location for transmitting the foregoing HARQ-ACK may be determined by determining at least one of the following: determining a frequency domain resource for transmitting the HARQ-ACK according to the physical resource block PRB location indicated by the signaling; Determining, according to the correspondence between the interleaving unit and the control channel element index CCE index of the control channel corresponding to the physical downlink shared channel PDSCH, the frequency domain resource for transmitting the HARQ-ACK; after determining the frequency domain resource set of the upper semi-static configuration, according to the secondary cell Scell The transmission power control TPC command or the allocation resource index ARI signaling of the uplink and downlink control information DCI determines the frequency domain resource for transmitting the HARQ-ACK.

In an optional embodiment, the physical resource blocks PRB included in the interleaving unit are uniformly and discretely distributed within the system bandwidth; and/or, the different user equipment UEs multiplex the same interleaving unit by means of code division or time division.

In an optional embodiment, when the foregoing HARQ-ACK includes a HARQ-ACK corresponding to multiple transmission units on one carrier, the size of the foregoing HARQ-ACK is determined by at least one of the following manners: corresponding to the HARQ-ACK feedback The size of the sliding window of the physical downlink shared channel PDSCH in the plurality of transmission units is determined; the number of PDSCHs corresponding to the user equipment UE received in the sliding window of the PDSCH in the plurality of transmission units corresponding to the HARQ-ACK feedback Determining; determining, by the value of the last downlink configuration index DAI received in the sliding window of the PDSCH in the plurality of transmission units corresponding to the HARQ-ACK feedback; determining by the value of the last received DAI; from the previous downlink burst Corresponding to the user equipment UE included in the burst The number of PDSCHs is determined; the size of the HARQ-ACK indicated by the above signaling is determined.

In an optional embodiment, when the foregoing HARQ-ACK includes a HARQ-ACK of all carriers in the uplink control information UCI cell group, the first sending module 126 may send the HARQ on the resource location by using the following manner: ACK: Cascading HARQ-ACKs of all carriers in a predetermined order; transmitting HARQ-ACKs of all carriers after concatenation on the above resource locations.

In an optional embodiment, the foregoing first sending module 126 may send a HARQ-ACK on the resource location by sending a HARQ-ACK at a resource location and at least one of the following information: corresponding to the HARQ-ACK. The process number information of the physical downlink shared channel PDSCH, the offset information of the resource location and the predetermined time domain resource location indicated by the signaling.

In an optional embodiment, the determining module 122 may determine, by means of signaling, a resource location for transmitting a HARQ-ACK by determining, by using two signalings, a resource location for transmitting a HARQ-ACK, where The secondary signaling is used to indicate at least one of the following information: scheduling information for transmitting HARQ-ACK, frequency domain resource size, window size of PDSCH requiring feedback, acknowledgment or non-acknowledgment ACK/NACK size; second signaling The time domain location and/or the physical resource block PRB resource location indicating the transmission of the HARQ-ACK.

In an optional embodiment, the apparatus further includes a first processing module configured to perform, after performing the LBT after the first listening on the unlicensed carrier, when the predefined location of the unlicensed carrier or the feedback of the signaling indication When the LBT failure is performed at the location, the HARQ-ACK is transmitted by using the nearest transmission unit on the authorized carrier included in the predetermined cell group, or the transmission of the HARQ-ACK is abandoned; when the predefined location of the unlicensed carrier or the signaling indication is feedback When the LBT fails to be performed in the location, and the HARQ-ACK is all ACK or the number of ACKs in the HARQ-ACK exceeds a threshold number, the LBT failure information is fed back on the predefined authorized carrier. .

In an optional embodiment, the foregoing first processing module may send the HARQ-ACK by using a nearest transmission unit on the authorized carrier included in the predetermined cell group by using the latest on the authorized carrier included in the predetermined cell group. Periodically reserved transmission unit sends HARQ-ACK.

13 is a structural block diagram of a second correlation apparatus for transmitting HARQ-ACK according to an embodiment of the present disclosure. As shown in FIG. 13, the apparatus includes a second transmission module 132, which will be described below.

The second sending module 132 is configured to send signaling to the user equipment UE, where the signaling is used to indicate related indication information of the UE HARQ-ACK transmission and a resource location on the unlicensed carrier that sends the HARQ-ACK.

In an optional embodiment, the foregoing signaling includes at least one of: a carrier indication that feeds back HARQ-ACK; a frequency domain resource location that transmits a HARQ-ACK; a subframe position or a sub-frame address that feeds back an acknowledgment or non-acknowledge ACK/NACK a set of frames; a HARQ process number or a process group number of a physical downlink shared channel PDSCH that needs to be fed back ACK/NACK; a signaling for indicating whether to delay transmission of HARQ-ACK; a time for delaying transmission of HARQ-ACK; a predefined The size of the ACK/NACK transmission window; the size of the sliding window of the PDSCH in the plurality of transmission units corresponding to the HARQ-ACK feedback, wherein the sliding window includes a predetermined number of consecutive downlink transmission units with variable positions; HARQ-ACK feedback The granularity of the sliding window slip of the PDSCH in the corresponding plurality of transmission units; the size of the sliding window adjustment of the PDSCH in the plurality of transmission units corresponding to the HARQ-ACK feedback; the size of the HARQ-ACK.

In an optional embodiment, the foregoing HARQ-ACK includes an acknowledgment or non-acknowledgement ACK/NACK corresponding to the at least one transmission unit, where the ACK/NACK corresponding to the at least one transmission unit includes at least one of the following: a predefined time The ACK/NACK of the PDSCH corresponding to the two or more transmission units in the sliding window indicated by the window or the signaling; the physical downlink shared channel PDSCH process number or the ACK/NACK corresponding to the process group number indicated by the signaling; high layer signaling and/or The ACK/NACK corresponding to the transmission unit dynamically indicated by the downlink control information DCI; all the predefined timing relationships are met from the time when the ACK/NACK corresponding to the transmission unit where the physical downlink shared channel PDSCH is last feedback to the current feedback time The ACK/NACK corresponding to the transmission unit where the PDSCH is located.

In an optional embodiment, the above transmission unit comprises one of: one or more sub- A frame, one or more time slots, one or more orthogonal frequency division multiplexed OFDM symbols.

In an optional embodiment, the predefined timing relationship is that the time difference between the location where the PDSCH is located and the location where the ACK/NACK is transmitted is greater than or equal to n transmission units, where n is a positive integer.

In an optional embodiment, the foregoing second sending module 132 may send the foregoing signaling to the UE by: carrying the foregoing signaling in the RRC message and/or the downlink control information DCI signaling; The RRC and/or DCI of the above signaling is sent to the UE.

In an optional embodiment, the foregoing second sending module 132 may carry signaling in the foregoing DCI signaling by: carrying the signaling in at least one of the following signaling included in the DCI signaling: a downlink The DL grant is granted, the public information indicates, the uplink grant UL grant, and the group-user equipment Group-UE DCI indication.

In an optional embodiment, the apparatus further includes a second processing module, configured to semi-statically configure a frequency domain resource set for transmitting the HARQ-ACK for the UE before sending the signaling to the UE, where The DCI signaling is used to indicate a frequency domain resource for transmitting a HARQ-ACK used by the UE from the foregoing frequency domain resource set.

In an optional embodiment, the foregoing second sending module 132 may send signaling to the UE by sending two signalings to the UE, where the first signaling is used to indicate at least one of the following information: The UE transmits the HARQ-ACK scheduling information, the frequency domain resource size, the window size of the PDSCH that needs to be fed back, the acknowledgment or non-acknowledgment ACK/NACK codebook size, and the second signaling is used to indicate the time domain in which the UE sends the HARQ-ACK. Location and/or physical resource block PRB resource location.

It should be noted that, in some embodiments, a subframe is used as a transmission unit as an example, but the method is also used for a transmission unit that is multiple subframes or one or more time slots or one or The case of multiple orthogonal frequency division multiplexed OFDM symbols.

The above modules may be implemented by software or hardware. For the latter, the foregoing may be implemented by, but not limited to, the above modules are all located in the same processor; or, the above modules are respectively located in different combinations. In the processor.

Embodiments of the present disclosure also provide a storage medium. Alternatively, in the embodiment, the above storage medium may be arranged to store program code for performing the above steps.

Optionally, in the embodiment, the foregoing storage medium may include, but is not limited to, a USB flash drive, a Read-Only Memory (ROM), and a Random Access Memory (RAM). A variety of media that can store program code, such as a hard disk, a disk, or an optical disk.

Optionally, in the embodiment, the processor performs the above steps according to the stored program code in the storage medium.

For example, the specific examples in this embodiment may refer to the examples described in the foregoing embodiments and the optional embodiments, and details are not described herein again.

Obviously, those skilled in the art should understand that the modules or steps in the above embodiments of the present disclosure may be implemented by a general computing device, which may be concentrated on a single computing device or distributed among multiple computing devices. Optionally, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from this The steps shown or described are performed sequentially, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated into a single integrated circuit module. As such, the disclosure is not limited to any specific combination of hardware and software.

The above description is only a preferred embodiment of the present disclosure, and is not intended to limit the disclosure, and various changes and modifications may be made to the present disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and scope of the present disclosure are intended to be included within the scope of the present disclosure.

Industrial applicability

As described above, a method and apparatus for transmitting HARQ-ACK according to an embodiment of the present disclosure have the following beneficial effects: solving the structure of a new frame and transmitting the LBT influence to the original timing relationship The impact of improving the probability of HARQ-ACK transmission and the flexibility of feedback can effectively improve system performance.

Claims (32)

  1. A method for transmitting hybrid automatic retransmission-confirmation information, including:
    Determining, by a predefined or signaling indication, the hybrid automatic retransmission-acknowledgement information to be sent and the resource location on the unlicensed carrier transmitting the hybrid automatic retransmission-acknowledgement information;
    Performing the first listening on the unlicensed carrier;
    After the success of the first listening, the hybrid automatic retransmission-confirmation information is sent at the resource location.
  2. The method of claim 1 wherein said signaling comprises at least one of:
    Feeding back a carrier indication of the hybrid automatic retransmission-acknowledgement information;
    Transmitting a frequency domain resource location of the hybrid automatic retransmission-confirmation information;
    Feedback confirmation or non-acknowledged subframe position or subframe set;
    A hybrid automatic retransmission process number or process group number of a physical downlink shared channel that requires feedback acknowledgement or non-acknowledgement;
    Signaling for indicating whether there is a delay in transmitting the hybrid automatic retransmission-acknowledgement information;
    Delaying the time of transmitting the hybrid automatic retransmission-confirmation information;
    The size of the predefined confirmation or non-confirmation send window;
    The hybrid automatic retransmission-recognition information feedback corresponds to a size of a sliding window of a physical downlink shared channel in a plurality of transmission units, wherein the sliding window includes a predetermined number of consecutive downlink transmission units with variable positions;
    The granularity of the sliding window sliding of the physical downlink shared channel in the plurality of transmission units corresponding to the hybrid automatic retransmission-acknowledgment information feedback;
    The size of the sliding window adjustment of the physical downlink shared channel in the plurality of transmission units corresponding to the hybrid automatic retransmission-acknowledgment information feedback;
    The hybrid automatic retransmission-confirmation information size.
  3. The method of claim 1, wherein the hybrid automatic retransmission-acknowledgement information comprises an acknowledgment or non-confirmation corresponding to at least one transmission unit, wherein the at least one transmission unit corresponding to the acknowledgment or non-confirmation comprises at least the following One:
    Confirmation or non-confirmation of a physical downlink shared channel corresponding to two or more transmission units within a sliding window indicated by the signaling;
    Confirmation or non-confirmation corresponding to the physical downlink shared channel process number or process group number indicated by the signaling;
    Confirmation or non-confirmation corresponding to the transmission unit of the high-level signaling and/or downlink control information dynamic indication;
    Confirmation or non-confirmation corresponding to the transmission unit of the physical downlink shared channel that satisfies the predefined timing relationship from the last acknowledgement or non-confirmation corresponding to the transmission unit where the physical downlink shared channel is located to the current feedback time .
  4. The method of claim 3 wherein said transmitting unit comprises one of:
    One or more subframes, one or more time slots, one or more orthogonal frequency division multiplexed symbols.
  5. The method according to claim 3, wherein the predefined timing relationship is that a time difference between a transmission unit where the physical downlink shared channel is located and a location where the acknowledgement or non-acknowledgment is transmitted is greater than or equal to n transmission units, where n is positive Integer.
  6. The method according to claim 1, wherein determining the hybrid automatic retransmission-confirmation information to be transmitted and the resource location for transmitting the hybrid automatic retransmission-confirmation information by means of signaling indication comprises:
    Acquiring the received radio resource control message and/or downlink control information signaling The signaling;
    And determining, according to the obtained signaling, hybrid automatic retransmission-confirmation information to be sent and a resource location for transmitting the hybrid automatic retransmission-confirmation information.
  7. The method of claim 6, wherein the obtaining the signaling carried in the received downlink control information signaling comprises:
    Obtaining the signaling carried in at least one of the following signaling included in the received downlink control information signaling: a downlink grant, a public information indication, an uplink grant, and a group-user equipment indication.
  8. The method according to claim 1, wherein the hybrid automatic retransmission-acknowledgement information comprises an acknowledgement or non-confirmation acknowledgement or non-confirmation corresponding to a transmission unit in which all physical downlink shared channels of the physical downlink shared channel are located in a time window. The sliding window of the physical downlink shared channel corresponding to the hybrid automatic retransmission-acknowledgment information feedback is in accordance with the sliding granularity indicated by the signaling, or the granularity of a time window length, or the granularity of the sliding window length, or k transmissions. The granularity of the unit is slid, where k is a positive integer.
  9. The method of claim 1, wherein the time domain resource location at which the hybrid automatic retransmission-acknowledgement information is transmitted comprises one of the following:
    The first uplink transmission unit position after the downlink burst;
    The location indicated by the signaling;
    Positions determined by the transmission units of the last physical downlink shared channel physical downlink shared channel plus q transmission units, where q is a predefined value or a value of the signaling configuration;
    The location determined by the q transmission units is added according to the location of the last transmission unit in the sliding window of the physical downlink shared channel, where q is a predefined value or a value configured by the signaling.
  10. The method of claim 1 wherein said hybrid automatic retransmission is sent - The frequency domain resource location of the acknowledgment information is determined by at least one of the following:
    Determining, by the physical resource block location indicated by the signaling, a frequency domain resource that sends the hybrid automatic retransmission-acknowledgement information;
    Determining, according to the correspondence between the interleaving unit and the control channel unit index of the control channel corresponding to the physical downlink shared channel of the physical downlink shared channel, the frequency domain resource that sends the hybrid automatic retransmission-acknowledgement information;
    After determining the frequency domain resource set of the upper half semi-static configuration, the frequency domain resource that sends the hybrid automatic retransmission-acknowledgement information is determined according to the transmission power control command or the allocated resource index signaling in the uplink and downlink control information of the secondary cell Scell.
  11. The method according to claim 10, wherein the physical resource blocks included in the interleaving unit are uniformly and discretely distributed within a system bandwidth; and/or different user equipment UEs multiplex the same interleaving unit by code division or time division. .
  12. The method according to claim 1, wherein said hybrid automatic retransmission-confirmation information is when said hybrid automatic repeat-confirmation information includes hybrid automatic repeat-recognition information corresponding to a plurality of transmission units on one carrier The size is determined by at least one of the following:
    Determining, by the size of the sliding window of the physical downlink shared channel physical downlink shared channel in the multiple transmission units corresponding to the hybrid automatic retransmission-acknowledgment information feedback;
    Determining, by the number of physical downlink shared channels corresponding to the user equipment, received in a sliding window of the physical downlink shared channel physical downlink shared channel in the multiple transmission units corresponding to the hybrid automatic retransmission-acknowledgment information feedback;
    Determining, by the value of the last downlink configuration index received in a sliding window of the physical downlink shared channel physical downlink shared channel in the multiple transmission units corresponding to the hybrid automatic retransmission-acknowledgment information feedback;
    Determined by the value of the last downlink configuration index received;
    Determining, by the number of physical downlink shared channels corresponding to the user equipment included in the previous downlink burst;
    The size of the hybrid automatic retransmission-acknowledgement information indicated by the signaling is determined.
  13. The method according to claim 1, wherein when said hybrid automatic repeat-confirmation information includes hybrid automatic repeat-recognition information of all carriers in a group of uplink control information cells, said location is transmitted at said resource location The hybrid automatic retransmission-confirmation information includes:
    Performing hybrid automatic retransmission-acknowledgement information of all carriers in a predetermined order;
    The hybrid automatic retransmission-acknowledgement information of the cascaded all carriers is transmitted at the resource location.
  14. The method of claim 1 wherein transmitting the hybrid automatic retransmission-acknowledgement information at the resource location comprises:
    Transmitting, at the resource location, the hybrid automatic retransmission-acknowledgement information and at least one of the following: a process ID information of a physical downlink shared channel physical downlink shared channel corresponding to the hybrid automatic retransmission-acknowledgement information, Offset information of the resource location and the time domain resource location indicated by the predetermined or the signaling.
  15. The method according to claim 1, wherein determining, by means of signaling, a resource location for transmitting the hybrid automatic retransmission-acknowledgement information comprises:
    Determining, by using two signalings, a resource location for transmitting the hybrid automatic retransmission-acknowledgement information, where the first signaling is used to indicate at least one of: a scheduling for transmitting the hybrid automatic retransmission-acknowledgement information Information, frequency domain resource size, window size of the physical downlink shared channel that needs to be fed back, acknowledgment or non-acknowledgment acknowledgment or non-acknowledgment size; second signaling is used to indicate the time domain location of transmitting the hybrid automatic retransmission-acknowledgement information And / or physics Resource block resource location.
  16. The method of claim 1, wherein after the performing the listener on the unlicensed carrier, the method further comprises:
    Transmitting the hybrid automatic with the most recent transmission unit on the authorized carrier included in the predetermined cell group when the pre-listening failure is performed on the predefined location of the unlicensed carrier or the feedback location indicated by the signaling Retransmission-confirmation information, or abandon this hybrid automatic retransmission-confirmation message transmission;
    When the pre-listening fails to be performed at a predefined location of the unlicensed carrier or the feedback location indicated by the signaling, and the hybrid automatic retransmission-acknowledgement information is all acknowledgement information or the hybrid automatic weight When the number of acknowledgment information in the acknowledgment information exceeds the threshold number, the information that the user first hears and then fails is fed back on the predefined authorized carrier.
  17. The method of claim 16, wherein the transmitting the hybrid automatic repeat-acknowledgement information by using a nearest transmission unit on the authorized carrier included in the predetermined group of cells comprises:
    The hybrid automatic repeat-acknowledgement information is transmitted by using a nearest periodic reserved transmission unit on the authorized carrier included in the predetermined group of cells.
  18. A method for transmitting hybrid automatic retransmission-confirmation information, including:
    Transmitting signaling to the user equipment, where the signaling is used to indicate that the user equipment mixes the relevant indication information of the automatic retransmission-acknowledgement information transmission and the resource on the unlicensed carrier that sends the hybrid automatic retransmission-acknowledgement information position.
  19. The method of claim 18, wherein the signaling comprises at least one of:
    Feeding back a carrier indication of the hybrid automatic retransmission-acknowledgement information;
    Transmitting a frequency domain resource location of the hybrid automatic retransmission-confirmation information;
    Feedback confirmation or non-acknowledgment or non-confirmed subframe position or subframe set;
    A hybrid automatic retransmission process number or process group number of a physical downlink shared channel of the physical downlink shared channel that needs to be acknowledged or unacknowledged;
    Signaling for indicating whether there is a delay in transmitting the hybrid automatic retransmission-acknowledgement information;
    Delaying the time of transmitting the hybrid automatic retransmission-confirmation information;
    The size of the predefined confirmation or non-confirmation send window;
    The hybrid automatic retransmission-recognition information feedback corresponds to a size of a sliding window of a physical downlink shared channel physical downlink shared channel in a plurality of transmission units, wherein the sliding window includes a predetermined number of consecutive downlinks with variable positions Transmission unit
    The granularity of the sliding window sliding of the physical downlink shared channel of the physical downlink shared channel in the plurality of transmission units corresponding to the hybrid automatic retransmission-acknowledgment information feedback;
    The size of the sliding window adjustment of the physical downlink shared channel of the physical downlink shared channel in the plurality of transmission units corresponding to the hybrid automatic retransmission-acknowledgment information feedback;
    The hybrid automatic retransmission-confirmation information size.
  20. The method of claim 18, wherein the hybrid automatic retransmission-acknowledgement information comprises an acknowledgment or non-acknowledgement acknowledgment or non-confirmation corresponding to at least one transmission unit, wherein the at least one transmission unit corresponds to an acknowledgment or non-confirmation Includes at least one of the following:
    Confirmation or non-confirmation of a physical downlink shared channel physical downlink shared channel corresponding to two or more transmission units in a sliding window indicated by the signaling;
    Confirmation or non-confirmation corresponding to the physical downlink shared channel process number or process group number of the physical downlink shared channel indicated by the signaling;
    Confirmation or non-confirmation corresponding to the transmission unit of the high-level signaling and/or downlink control information dynamic indication;
    The transmission list of the physical downlink shared channel of the physical downlink shared channel from the last feedback The acknowledgment or non-confirmation of the transmission unit corresponding to the physical downlink shared channel that satisfies the predefined timing relationship during the period from the acknowledgment or non-confirmation of the element to the current feedback time.
  21. The method of claim 20 wherein said transmitting unit comprises one of:
    One or more subframes, one or more time slots, one or more orthogonal frequency division multiplexed symbols.
  22. The method according to claim 20, wherein the predefined timing relationship is that a time difference between a transmission unit where the physical downlink shared channel is located and a location where the acknowledgement or non-acknowledgment is transmitted is greater than or equal to n transmission units, where n is positive Integer.
  23. The method of claim 18, wherein transmitting the signaling to the UE comprises:
    Carrying the signaling in a radio resource control message and/or a downlink control information signaling;
    And transmitting, by the user equipment, the radio resource control and/or downlink control information that carries the signaling.
  24. The method of claim 23, wherein the carrying the signaling in the downlink control information signaling comprises:
    The signaling is carried in at least one of the following signaling included in the downlink control information signaling: a downlink grant, a public information indication, an uplink grant, and a group-user equipment downlink control information indication.
  25. The method according to claim 23 or 24, wherein before the transmitting the signaling to the user equipment, the method further comprises:
    And configuring, by the user equipment, a frequency domain resource set for transmitting the hybrid automatic retransmission-acknowledgement information, where the downlink control information signaling is used to indicate the user equipment from the frequency domain resource set. Used to send the hybrid automatic retransmission-confirmation information Frequency domain resources.
  26. The method of claim 18, wherein transmitting the signaling to the user equipment comprises:
    Transmitting the signaling to the user equipment, where the first signaling is used to indicate at least one of the following information: scheduling information, frequency domain resources used by the user equipment to send the hybrid automatic retransmission-acknowledgement information The size, the window size of the physical downlink shared channel that needs to be fed back, the acknowledgment or non-acknowledgment acknowledgment or the non-acknowledgment size; the second signaling is used to indicate that the user equipment sends the time domain location of the hybrid automatic retransmission-acknowledgement information and / or physical resource block resource location.
  27. A device for transmitting automatic retransmission-confirmation information, comprising:
    a determining module, configured to determine, by means of a predefined or signaling indication, a hybrid automatic retransmission-acknowledgement message to be sent and a resource location on an unlicensed carrier that sends the hybrid automatic retransmission-acknowledgement information;
    An execution module, configured to perform listening on the unlicensed carrier and then speaking;
    The first sending module is configured to send the hybrid automatic retransmission-confirmation information at the resource location after the said listening is successful.
  28. The method according to claim 27, wherein the determining module uses the hybrid automatic retransmission-confirmation information to be transmitted and the resource location in which the hybrid automatic retransmission-confirmation information is transmitted in a manner indicated by signaling to:
    Acquiring the signaling carried in the received radio resource control message and/or the downlink control information signaling;
    And determining, according to the obtained signaling, hybrid automatic retransmission-confirmation information to be sent and a resource location for transmitting the hybrid automatic retransmission-confirmation information.
  29. A device for transmitting automatic retransmission-confirmation information, comprising:
    a second sending module, configured to send signaling to the user equipment, where the signaling is used to indicate that the user equipment mixes the relevant indication information of the automatic retransmission-acknowledgement information transmission, and sends the hybrid automatic retransmission-confirmation information The location of the resource on the unlicensed carrier.
  30. The apparatus of claim 29, wherein the second transmitting module is configured to:
    Carrying the signaling in a radio resource control message and/or a downlink control information signaling;
    And transmitting, by the user equipment, the radio resource control and/or downlink control information that carries the signaling.
  31. A storage medium, characterized in that the storage medium comprises a stored program, wherein the program is executed to perform the method of any one of claims 1 to 26.
  32. A processor, wherein the processor is operative to run a program, wherein the program is operative to perform the method of any one of claims 1 to 26.
PCT/CN2017/082528 2016-04-29 2017-04-28 Harq-ack information transmission method and apparatus WO2017186174A1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020024187A1 (en) * 2018-08-01 2020-02-06 Lenovo (Beijing) Limited Method and apparatus for harq-ack codebook determination
CN110830173A (en) * 2018-08-08 2020-02-21 展讯通信(上海)有限公司 Method for indicating time difference between PUCCH and PDSCH, base station and readable medium
EP3589036A4 (en) * 2017-03-23 2020-03-04 Huawei Technologies Co., Ltd. Downlink synchronization signal transmitting method and receiving method and device

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109787720A (en) * 2017-11-14 2019-05-21 中国信息通信研究院 A kind of hybrid automatic repeat-request transmission method, device and system
CN108401481B (en) * 2017-11-16 2020-05-22 北京小米移动软件有限公司 Physical layer resource mapping method, device, user equipment and base station
CN111194575A (en) * 2017-12-22 2020-05-22 上海朗帛通信技术有限公司 Method and device used in user equipment and base station for wireless communication
CN110034892A (en) * 2018-01-12 2019-07-19 维沃移动通信有限公司 Determination method, indicating means, terminal device and the network equipment of HARQ-ACK feedback time
CN108039939B (en) * 2018-01-19 2019-12-27 北京邮电大学 HARQ feedback method and device for multicast service of Internet of things
WO2019157920A1 (en) * 2018-02-13 2019-08-22 华为技术有限公司 Method for transmitting feedback information and communication device
WO2019157634A1 (en) * 2018-02-13 2019-08-22 Oppo广东移动通信有限公司 Method and device for transmitting harq information, and computer storage medium
CN110324117A (en) * 2018-03-30 2019-10-11 电信科学技术研究院有限公司 A kind of data transmission method, terminal device and the network equipment
WO2020029268A1 (en) * 2018-08-10 2020-02-13 北京小米移动软件有限公司 Uplink feedback method and apparatus, terminal, base station and storage medium
CN110891311A (en) * 2018-09-07 2020-03-17 华为技术有限公司 Method and communication device for transmitting feedback information
JP2020043508A (en) * 2018-09-12 2020-03-19 シャープ株式会社 Terminal device, base station device, and communication method
US20200106569A1 (en) * 2018-09-27 2020-04-02 Mediatek Inc. Mechanisms for postponing hybrid automatic repeat request acknowledgement (harq-ack) feedback
CN110971350A (en) * 2018-09-28 2020-04-07 华为技术有限公司 Data transmission method, equipment and system
WO2020087348A1 (en) * 2018-10-31 2020-05-07 北京小米移动软件有限公司 Information feedback method and apparatus
CN111147192A (en) * 2018-11-02 2020-05-12 中国信息通信研究院 Timing determination method of HARQ-ACK information and network terminal
WO2020034566A1 (en) * 2019-01-08 2020-02-20 Zte Corporation Feedback code size determination schemes in wireless communication

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105187173A (en) * 2015-09-08 2015-12-23 魅族科技(中国)有限公司 Data retransmission method for non-authorized frequency spectrums, and device
CN105338568A (en) * 2015-09-25 2016-02-17 宇龙计算机通信科技(深圳)有限公司 LTE transmitting method and device on unauthorized frequency spectrum
CN105453473A (en) * 2013-08-13 2016-03-30 高通股份有限公司 HARQ design for LTE in unlicensed spectrum utilizing individual ACK/NACK
CN105474567A (en) * 2013-08-13 2016-04-06 高通股份有限公司 Group ACK/NACK for LTE in unlicensed spectrum

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105453473A (en) * 2013-08-13 2016-03-30 高通股份有限公司 HARQ design for LTE in unlicensed spectrum utilizing individual ACK/NACK
CN105474567A (en) * 2013-08-13 2016-04-06 高通股份有限公司 Group ACK/NACK for LTE in unlicensed spectrum
CN105187173A (en) * 2015-09-08 2015-12-23 魅族科技(中国)有限公司 Data retransmission method for non-authorized frequency spectrums, and device
CN105338568A (en) * 2015-09-25 2016-02-17 宇龙计算机通信科技(深圳)有限公司 LTE transmitting method and device on unauthorized frequency spectrum

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3589036A4 (en) * 2017-03-23 2020-03-04 Huawei Technologies Co., Ltd. Downlink synchronization signal transmitting method and receiving method and device
WO2020024187A1 (en) * 2018-08-01 2020-02-06 Lenovo (Beijing) Limited Method and apparatus for harq-ack codebook determination
CN110830173A (en) * 2018-08-08 2020-02-21 展讯通信(上海)有限公司 Method for indicating time difference between PUCCH and PDSCH, base station and readable medium

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